The two-day 4th annual `Birds of Sindh` photography exhibition opens at the Pakistan American Culture Center at 11am. The participating photographers of wild birds are Mirza Naim Beg, Hina Rizvi, Zeenat Bayat, Pharanaz Naveed, Waqar Mursaleen, Umair Siddiqui, Furhan Khursheed,Asad Farooq, Shabaz Alam, Saad Aleem, Saeed Jamal, Fahad Siddiqui and Nusrat Ali.